DE3063531D1 - Azo dyestuff preparation by phase transfer catalysed coupling in a two-phase medium - Google Patents

Azo dyestuff preparation by phase transfer catalysed coupling in a two-phase medium

Info

Publication number
DE3063531D1
DE3063531D1 DE8080303539T DE3063531T DE3063531D1 DE 3063531 D1 DE3063531 D1 DE 3063531D1 DE 8080303539 T DE8080303539 T DE 8080303539T DE 3063531 T DE3063531 T DE 3063531T DE 3063531 D1 DE3063531 D1 DE 3063531D1
Authority
DE
Germany
Prior art keywords
phase
azo dyestuff
catalysed coupling
dyestuff preparation
medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8080303539T
Other languages
German (de)
Inventor
Michael Ellwood
Peter Gregory
John Griffiths
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of DE3063531D1 publication Critical patent/DE3063531D1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B41/00—Special methods of performing the coupling reaction
    • C09B41/001—Special methods of performing the coupling reaction characterised by the coupling medium
    • C09B41/005—Special methods of performing the coupling reaction characterised by the coupling medium containing low molecular weight dispersing agents; containing surface active polythylene gylcols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B41/00—Special methods of performing the coupling reaction
    • C09B41/001—Special methods of performing the coupling reaction characterised by the coupling medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
DE8080303539T 1979-10-26 1980-10-08 Azo dyestuff preparation by phase transfer catalysed coupling in a two-phase medium Expired DE3063531D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7937296 1979-10-26

Publications (1)

Publication Number Publication Date
DE3063531D1 true DE3063531D1 (en) 1983-07-07

Family

ID=10508816

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080303539T Expired DE3063531D1 (en) 1979-10-26 1980-10-08 Azo dyestuff preparation by phase transfer catalysed coupling in a two-phase medium

Country Status (2)

Country Link
EP (1) EP0028464B1 (en)
DE (1) DE3063531D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN169343B (en) * 1986-04-05 1991-09-28 Cassella Farbwerke Mainkur Ag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778806A (en) * 1952-12-12 1957-07-10 Hoechst Ag Manufacture of water-insoluble azo-dyestuff pigments
BE628744A (en) * 1961-04-26
US3897203A (en) * 1972-02-28 1975-07-29 American Color & Chem Carbazole dyestuffs
BE796574A (en) * 1972-03-15 1973-09-10 Ici Ltd DISPERSIONS AND COMPOSITIONS OF DISPERSABLE AZOIC COLORANTS
JPS5516573B2 (en) * 1972-11-16 1980-05-02
DE2603836C3 (en) * 1976-02-02 1980-09-04 Cassella Ag, 6000 Frankfurt Process for the production of azo dyes

Also Published As

Publication number Publication date
EP0028464B1 (en) 1983-05-25
EP0028464A1 (en) 1981-05-13

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee